Saw swage



Oct. 18, 1932. Dl E, GOMMEL 1,883,703

vSAW SWAGE Filed April 1'7. 1930 31a/vado@ peu/@yf 601717112] :DEWEY E. GOMMEL, or INDIANAPOLIS, INDIANAl-Assiervon iro fijo. l, PANY, or INDIANAPOLIS, INDIANAUAIQOBEQRAIZION or. I NnIANA sAw swAGE E Application led April 17,

This invention relates to improvements in saw swages and more particularly is an improvement on swages such as that shown in my co-pending application Serial No. u5299,414, filed August 13, 1928, for saw swages. An object of this invention is to vprovide means for more securely holding the parts of the swage to Vprevent them from getting out of'adjustment during swaging operation. l

' A `further general object is to provide a swage which will bemore accurate during swaging operation.

Referring to the accompanying drawing, 15 which is made a part hereof and on which similar reference characters indicate simi-V lar parts, v Y Y Figure 1 1s a side elevation of a saw swage having my invention embodiedl therein, and

details of the device.

In the drawing numeral 10 indicates a swage block which is Cylindrical in shape and which has mounted therein a swaging die 11 which is operated by means of a lever 12 which is suitably secured to one end of the die 11. A lever 13 operates a screw, not

shown, to hold the block 10 securely upon a saw 14.V A swaging anvil, not shown, is held against and adjusted by a screw 15. Numeral 16 indicates a supporting frame upon which the swaging block is mounted. This frame has at one end a supporting standard 17 which is secured to the end of the frame by means of a screw 18 which passes through a slot 19 in the support 17. The lower end' of the support 17 has a Hat bar 2O which rests i upon the tips of the saw teeth, preferably A support 21 is secured to the other end of the frame 16 by means of a bolt 22 which passes through a slot 23 in the support 21 and a slot 24 in the end 38 of the frame 16.

A horizontal flat bar 25 is secured to the support 21 so asV to rest onthe tips of the saw teeth. The'support 21 has prongs 26 which straddle the saw. A bracket 27 is secured to the block 10 by vmeans of a bolt 28, the bolt passing through a slot 29 in an arcuate portion 30 of the frame 16. The bracket Figure 2 is an end elevation of one of theY extending over two or more teeth as shown.

fiesozf serri'ai No'. 445,144. f fr the end of the frame `16to'limitmoveinent of Athe lever" -12 inr the opposite direction. f The r Vposition off the-.-swaging die anvil withffrespect to the back of the-sawtooth 33 is' deter.-

fminedxbythe .positiong'ofgthe die :block 10 40:o variation; i Y... n.1.

Duri-ng' af swagin'g` operation vthe lever: 212 vnecessaifilyfis 'brought :to vstrike against fthe `'stop :31: This tends to rotate vthe ,blooki l0 Ycounterclockwa' sefmd,y it 'has been founds;A very idifiicult to secure rv'the bolt( .28V :tig-ht'enough topreventthe*blook 34 which is positioned :on topl ofthe arcuate portion 3()Vr ofthe bracket from" slipping toward :the lileft.; In order .to` prevent. this `slipping rhavemade the arcuate portion ,301V thicker- :at'onel end than iat the .other-iso 'as to4k provide alwedging action. Thatqi's, :the di 'stance between they outer and inner arcs ofthe arcuate portion 30iis greater Yat one end fthan .at-fthe other, for example, in a lsmall: fswage the z :distance at the right` end :mighty be v'ths ofI air-inch, as shown, with the distance at .the left handv end -ths of an inch, as .showini This difference in thickness is suf.:-

271ca1riesi an" adjastabie Shop. .faitv to mit movement: 'of the'sleverf12 :in: ythel ldirection ofswagmgfatooth. stop 32 is securedto iwith' respectV to the frame 16.@`A This adjusty ment'is for!'diiferentfforins ofteeth- :Posiz- 1,60

ti'onzbetween :the 1 blocks 1 10. and the arcuate block 34 so that the block34is.:prevented 'fromisli'dng toward therleft ina counterclockwise direction; 'i very llittle'movement tothe left will tightenthe .blocksol thatit will soon become secured againstlgfurtherfJnioveinent"":lDur'ing'swaging operation ysince the force acting on the lever 12 is toward the left, as shown in Figure l, there will be a tendency for the end 38 of the frame 16 to slide down in the slot 23 on the support 21.

In order to prevent-such sliding after the end ofthe frame 16 is adjusted in the slot 23 I make the upper portion 35 of the support 21 a little thinner than the lower portion 36 so as to provide a wedging action vbetween .y

a washer 37 of the bolt 22 andthe end 38 f of the frame 16. This dierence in thickness may be in the nature of g1g for example for a swage of the size described. The top of the support 2l may be 8/32 and the lower portion at 36 may be 59g. This difference in thickness provides a wedging action between the ends 38 of the frame and the washer 37. Since one side of the support 21 must fit evenly against the face of the end of the frame 16, I make only one side of the support tapered. It should be noted that only the right surface 39 is tapered upwardly.

It will be obvious to those skilled in the art that various changes may be made in my device without departing from the spirit of the invention and therefore l do not limit myself to what is shown in the drawing and described in the specification, but only as indicated in the appended claims.

Having thus fully described my said invention, what l claim as new and desire to secure by Letters Patent, is:

l. A saw swaging device comprising a frame having a block mounted therein, a Y

swagingdie mounted in the block, a lever for operating the die, arms on said frame for holding it on a saw, one of the arms having a depending leg engageable with the saw, said depending leg having means for adjustably attaching it to the said arm, said leg gradually increasing in thickness from its upper end toward the center, providing a wedging action between it and the attaching means whereby any slippage of the arm on the leg will tend to tighten the engagement between the leg and the arm to prevent further slippage, substantially as set forth.

2. A swaging device comprising a frame, a swaging block rotatably mounted in the frame, a swagng die carried by the said block, an anvil in the said block engagea-ble with a saw tooth in pesitien opposite to the said die, a lever for rotating said die, a bracket secured to the said block, an arcuate portion on the said frame engageable by the said block, said arcuate portion having a progressively increasing thickness to tighten the block against rotation as it tends to rotate beyond a predetermined distance, substantially as set forth.

In witness whereof, I have hereunto set my hand and seal at Indianapolis, Indiana, this 15th day of April, A. D. nineteen hundred and thirty.

DEWEY E. GOMMEL. 

